Furnace.



No. 650,32l. Patented lunafs, |900. c.fM. BUMP.

Fun-Mci.

(Application med Feb. 15, 1900.) (N0 Model.)

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:UNITED STATES PATENT OEE-ICE.

CHARLES MURRAY BUMP, or RAY CITY, MICHIGAN.

FURNACE'.

SPECIFICATION forming part of Letters Patent No. 650,821, dated June 5, 1900.

Application filed February 15, 1900. Serial No. 5 ,267. (No model.)

To all whom it may concern:

Be it known that I, CHARLES MURRAY" BUMP, a citizen of the United States, residing at Bay City, inthe county of Bay and State of Michigan, have invented certain new and useful Improvements in Furnaces; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to furnaces, and pertains more particilarly to water-heating furnaces.

The improvements consist in certain constructions and devices in a furnace whereby the objects of my invention are accomplished. These objects are, first, to provide a furnace with two fuel-burnin g compartments communicating with each other in such manner that the gases of combustion from either compartment may be passed over the coal-bed in the other compartment, where they are mixed with air and burned; second,to provide means for readily changing the current of gases from one compartment into the other; third, to provide a partition-wall between the compartments that shall consist of a water-heating surface and act not only as a partition or bridge wall over which the gases pass, but also to deflect the gases coming from one com partment downward against the coal-bed in the other compartment, thereby increasing the efficiency of the heating-Surface in the partition and also securing more perfect combustion.

The invention is clearly shown in the accompanying drawings, throughout the views of which similar characters of reference designate corresponding parts and devices.

Figure l vis a part-vertical section of my improved furnace applied to a house-heater, the section being parallel with the front of the furnace. Fig. 2 is a vertical section taken longitudinally through one of the fuel-compartments on the line y @j of Fig. 1.

The device consists in a furnace-body l, that may be surrounded with a water-space 2, which communicates with the water circulation of the furnace-shell, having a central partition 3 extending the length of the furnace and communicating. at its ends with the water-spacersurrounding the furnace-body. Near its upper part the central partition 3 has an opening 4, which. connects the two compartments. At the top of the partition 3 and communicating therewith are laterallyextending wings or deflectors 5 and 5a, which project over the respective compartments, except for a smoke-outlet 6 or 6 at each side, upon which draft-regulators 7 and 7L may be closed by means outside the furnace.

The operation of the furnace is as follows: There being a bed of incandescent coals in one compartment, fresh coal is added to the fire in the other compartment, the draft-regulator 7 o'f which is then closed. The smoke and gas of the new lire pass through the opening 4 into the other compartment, where they are deflected by the wing 5 downward against the in candescent-coal bed. Air is at the same time admitted abovel the incandescent coal by any suitable means, and the smoke and volatile gases are thereby consumed, the remaining gases passing into the furnace-shell through the opening 6. When fresh coal is added to the compartment containing the bright-coal bed,the draft or damper 7 is closed and the damper 7 a is opened, thereby reversing the direction of the gases and consuming the smoke in the other compartment.

l. In a water-heating furnace the combination with a grate of a vertical water-containing partition dividing the grate-surface into two parts; a gas-passage through said partition; a water-containing top for said partition extending laterally over the fire; and dampers for regulating the gas-exit between the laterally-extending top and the furnace-wall, substantially as described.

2. In a water-heating furnace the combination with a grate of a vertical water-containing partition dividing the grate-surface into two parts and communicating with a Waterspace surrounding the furnace; an opening through said partition; a water-containing top for said partition, communicating with the water-space surrounding the furnace and extending laterally over a portion of the firebed on each side of the partition; and dampers for regulating the gas-exit between the laterally-extending top and the furnacewalls,sub stantially as described and for the purposes set forth. A

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES MURRAY BUMP.

Witnesses:

GEC. B. WILLCox, W. NICHOLSON.

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